class Person:
    province = '北京'
    def __init__(self,name):
        self.name = name

    @classmethod
    def change_province(cls,province):
        cls.province = province

    @staticmethod
    def user_aggrement():
        pass

Person.change_province('湖北')
print(Person.province)

person = Person('张三')
person.change_province('河南')
print(person.province)


Person.user_aggrement()
person.user_aggrement()


